Studies on Carrageenans from the Economic Red Algal Genus Eucheuma in Tanzania
- 1 January 1977
- journal article
- research article
- Published by Walter de Gruyter GmbH in Botanica Marina
- Vol. 20 (4) , 239-242
- https://doi.org/10.1515/botm.1977.20.4.239
Abstract
Carrageenan yields of 5 Tanzanian species of Eucheuma were determined. The mean yields obtained were 72.8%, 69.0%, 65.0%, 58.0% and 54.0% for E. spinosum J. Agardh, E. striatum Schmitz, E. platycladum Schmitz, E. okamurai Yamada and E. speciosum J. Agardh f. mauritianum Boergesen, respectively. IR spectroscopy studies were conducted. E. striatum and E. okamurai showed absorption peaks characteristic of .kappa.-carrageenan; E. spinosum showed peaks characteristic of .tau.-carrageenan. E. speciosum f. mauritianum and E. platycladum showed peaks more closely resembling those of .tau.- than .kappa.-carrageenan.This publication has 4 references indexed in Scilit:
- IR Studies on Carrageenan of Ahnfeltia concinna, a Marine Red AlgaJournal of Pharmaceutical Sciences, 1975
- Carrageenans. Part VII. Polysaccharides from Eucheuma spinosum and Eucheuma cottonii. The covalent structure of ι-carrageenanJournal of the Chemical Society, Perkin Transactions 1, 1973
- Carrageenans. Part XI. Mild oxidative hydrolysis of κ- and ι-carrageenans and the characterisation of oligosaccharide sulphatesJournal of the Chemical Society, Perkin Transactions 1, 1973
- The utilization of marine Algae in tropical South and East AsiaEconomic Botany, 1959